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Answers by Tristan N.

Can you help me to solve this problem? x/5=70 (answer)

Greetings Alice! The objective here is to calculate what value of x for which that statement is true. X itself is just a variable which cab take on any value we need it to but may not necessarily result in the right answer. Case in point, let's pick a value at random: 20. If X were 20 then...

2sinx=Square root of 2 (answer)

Greetings Milena! The first thing you should do is to solve for sinx: sinx = sqrt(2)/2 Now, to solve x, I am sorry to have to tell you that without a calculator, the only real way to solve this is by knowing the unit circle and its values. In this case x would have to equal 45 degrees,...

cot^2x+cscx-1=0 (answer)

The first step is to use trigonometric identities to simplify this expression. One of the most basic trig identities you will ever need to memorize is: sin^2x + cos^2x = 1 Now, we can manipulate this to find a way to simplify cot^2x by dividing both sides by sin^2x to get this: sin^2x/sin^2x...

how do i find the domain of f(x)=|x+1|? (answer)

Greetings Alexis! Any time you encounter absolute values, that is short hand for saying you have a piece-wise function, or two functions put together. In essence, the function you've been given is shorthand for: f(x) = -(x+1) = -x-1 for x+1<0 --> x<-1 AND f(x)...